Greater Northwest Medical Group
NPI 1447280839 · Internal Medicine Physician · Buffalo Grove, IL
Greater Northwest Medical Group is a Internal Medicine Physician organization in Buffalo Grove, IL (NPI 1447280839).
Provider details
- NPI number
- 1447280839
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Michael Hartke, Administrator(847) 459-7860
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-03
- Last updated
- 2007-10-10
Frequently asked questions
- What is Greater Northwest Medical Group's NPI number?
- Greater Northwest Medical Group's National Provider Identifier (NPI) is 1447280839, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Greater Northwest Medical Group?
- Greater Northwest Medical Group is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Greater Northwest Medical Group located?
- Greater Northwest Medical Group's practice location on file with NPPES is 1300 Busch Pkwy, Buffalo Grove, IL 60089-4505.
- What is Greater Northwest Medical Group's phone number?
- The practice phone number listed in the NPPES registry for Greater Northwest Medical Group is (847) 459-7860.
- Who is the authorized official for Greater Northwest Medical Group?
- The authorized official listed on Greater Northwest Medical Group's NPPES record is Michael Hartke, Administrator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Greater Northwest Medical Group's NPI active?
- Yes — Greater Northwest Medical Group's NPI (1447280839) is active in the NPPES registry as of the last update on 2007-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.